WO1990009330A1 - Elastic plug for containers - Google Patents

Elastic plug for containers Download PDF

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Publication number
WO1990009330A1
WO1990009330A1 PCT/ES1990/000008 ES9000008W WO9009330A1 WO 1990009330 A1 WO1990009330 A1 WO 1990009330A1 ES 9000008 W ES9000008 W ES 9000008W WO 9009330 A1 WO9009330 A1 WO 9009330A1
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WO
WIPO (PCT)
Prior art keywords
concavity
cavity
groove
cap according
transverse groove
Prior art date
Application number
PCT/ES1990/000008
Other languages
Spanish (es)
French (fr)
Inventor
Fernando Xalabarder Miramanda
Original Assignee
Fernando Xalabarder Miramanda
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fernando Xalabarder Miramanda filed Critical Fernando Xalabarder Miramanda
Publication of WO1990009330A1 publication Critical patent/WO1990009330A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means

Definitions

  • the invention relates to improvements applied to an elastic stopper for containers, particularly test tubes and the like, comprising a cavity that has an upper mouth and a lateral surface, and which is internally closed by a partition provided with at least one cut transverse that delimits sectors that separate when introducing a rod and that return to its closed position when removing said rod.
  • a plug type described has been disclosed by the applicant by means of the Spanish utility model N s 266 599, corresponding to US patent 4515,752.
  • This cap according to said patent is of satisfactory use, although for certain applications, it is possible to improve its effectiveness.
  • the improvements referred to derive from a configuration that is characterized in that said septum has an internal face that defines a first concavity and an external face that defines a safety-concavity, being substantially conical and substantially coaxial with the cavity, presenting said face internal by at least one transverse groove so that each cut is in a transverse groove and the bottom of each transverse groove progressively increases in a centrifugal direction its unevenness with respect to the mouth of the cavity; and a first peripheral groove to said concavity, provided with a bottom in communication with the bottom of each transverse groove; while said second concavity it is substantially conical in shape and more obtuse than said first concavity.
  • Fig. 1 a top plan view of the elastic cap object of the present invention; and Fig. 2, on a larger scale, a section according to line II-II of Fig. 1.
  • the plug 2 is made of a highly flexible material, such as rubber, an artificial elastomer or similar material. It is intended to be partially introduced into a container, especially a test tube or similar element, particularly for the practice of clinical analysis, which is a container of . samples to be analyzed, reagents and others.
  • a cavity 4 is shown that has a mouth 6 a lateral surface 8 of generally cylindrical shape the cavity is closed inferiorly by a partition 10 having an internal face 12 and an external face 14. Said internal face defines a first concavity 16 which is substantially conical in shape and is substantially coaxial with the cavity itself 4, presenting central vertex 18 depressed.
  • Abl ⁇ abic e 10 is provided with a transverse section 20 or preferably a plurality of transverse cuts 20 that affect the entire thickness of the partition and converge at the central vertex 18.
  • these corrals are 2C senals, two are aligned two and more preferably determine an orthogonal cross, as depicted in Fig. 1.
  • each two cuts 20 sectors 22 are delimited, which, due to the elasticity of the material, are separated when they are pressed by the introduction of a rod and that they return to their initial closing position when removing said rod;
  • the stem is a tube, pipette or the like related to the introduction or removal of liquid into a test tube.
  • the aforementioned concavity 16 favors the sliding of the rod towards the depressed central vertex 18.
  • the slope of this concavity is approximately 17 sexagesimal degrees.
  • transverse groove 24 preferably in correspondence with each cut-radius 20, although the number of grooves may be different than the of run. In any case, a cut 20 is always in a groove 24.
  • Such grooves 24 are preferably of radial orientation and being aligned two radial grooves, make up a diametral groove.
  • the bottom 26 of a groove 24 ascends when approaching the central vertex 18 or, in other words, the bottom 26 progressively increases in a centrifugal direction, its unevenness with respect to the mouth 6 of the cavity 4, so that all the grooves are they meet at the same height when converging at the central vertex 18. It can be seen, therefore, that while the first concavity 16 increases its depth from the periphery towards the center, the transverse grooves 24 increase its depth from the center to the periphery.
  • the inner face 12 also has a first peripheral groove 28 with respect to the first concavity 16.
  • the bottom 30 of the first peripheral groove 28 is in communication with the bottom 26 of the transverse grooves, although there may be some, level difference between both of them. As indicated below, preferably this first peripheral groove is discontinuous.
  • the first groove peripheral 28 decreases, at least in part of an annular area, the 'thickness of the partition 10 closes the cavity 4. This facilitates the bending of the sections 22 and corresponding emerging divisions 32, at the time that they are subjected to the action of the pipette or similar element.
  • each of the divisions 32 there is at least one axial rib 38 that joins the split 32 and the lateral surface 3 of the cavity 4. It is also provided that at least some of these axial ribs 38 extend from the bottom 30 of the groove 28 to the mouth 6 of the plug 2. These ribs are called axial because they are oriented according to the direction of the ideal axis of the plug; they interrupt the first peripheral groove 28 and prevent excessive bending of divisions 32.
  • grooves 24, 28 are useful for storing any residual liquid that has fallen inside the cavity This prevents these liquid residues from entering the container again, with the possible consequences of contagion.
  • the outer face 14 of the partition 10 preferably defines a second concavity 40, also substantially conical in shape, which is more obtuse than said first concavity 16, that is, that the ideal generatrix of this second concavity 40 and the ideal axis of the plug forms a angle ⁇ for example 84 ° sexagesimal) closer to the right angle than the angle (for example 73 a ) that forms the ideal generatrix of the first concavity 16 with the same ideal axis of the plug.
  • a second concavity 40 also substantially conical in shape, which is more obtuse than said first concavity 16, that is, that the ideal generatrix of this second concavity 40 and the ideal axis of the plug forms a angle ⁇ for example 84 ° sexagesimal) closer to the right angle than the angle (for example 73 a ) that forms the ideal generatrix of the first concavity 16 with the same ideal axis of the plug.
  • the thickness (about 1.5 mm) of the partition 10 is substantially constant, measured axially between the outer face 14 and the bottom 26 of the radial grooves 24.
  • the said concavity favors a recovery of the partition 10 when it ceases if the deformation pipette is applied on it.
  • a fin 44 that surrounds the mouth 6 and said fin 4 is continued, by a peripheral skirt 46, so that the fin 44 is suitable to cover the mouth of the tube and the skirt 46 be fit to cover a section of the outer side surface of the tube.
  • reliefs 48, 50, 52 are found together with recesses 54, 56 suitable for cooperating with complementary elements of the tube in order to facilitate and ensure the insertion of the cap 2 .
  • the fin 44 and the skirt 46 have (on its outer lateral surface) lateral sections 58, 60 pianos and axial (this is parallel to the ideal axis of the plug), parallel and opposite each other two to two ; preferably, these sections are two orthogonal pairs, as shown in the proposed example.
  • the transition surface between two consecutive sections can be rounded or have a configuration like the one shown, capable of favoring the grip of the plug without slipping.
  • One purpose of said flat sections 58, 60 is for an adequate fastening and orientation of the cap while the cuts 20 are being made; preferably, the plug is obtained by a molding operation that provides its configuration and then the aforementioned cuts 20 are made, which must be aligned with the radial grooves 24.
  • This requirement of a certain relative situation between cuts 20 and grooves 24 is easier compliance with the aforementioned flat sections 58, 60, since in this case the cap can be grasped between two jaws that cause a correct placement of the cap during the practice of the radial cuts 20.
  • the described cap allows access to the interior of the container, both to extract content to provide it, without separating it from the container. It can be subjected to internal pressures of 2 Xg / cm or voids greater than 58 mm of mercury without any detriment. In addition, it usually allows more than 200 openings and closures without losing its proper shutter function.

Abstract

Elastic plug for containers, having a cavity (4) closed at the bottom by a wall (10) provided with one or more transverse cuts (20) which delimit sectors (22) separable when introducing a stem and which may be brought back to the closure position when removing them. The wall (10) presents an internal face (12) which defines a first conical concavity (16) which is coaxial with the cavity (4); the internal face (12) has one or more transverse grooves (24) so that each cut (20) is situated in a transverse groove (24); and the bottom of each transverse groove (24) sinks when approaching a peripheral groove whose bottom (30) communicates with the bottom of each transverse groove; in the face opposite to the internal face (12) a second concavity (16) is provided. The plug may be applied preferably to tubes and the like for clinical analysis.

Description

TAPON ELÁSTICO PARA RECIPIENTES ELASTIC CAP FOR RECIPIENTS
La invención se refiere a unas mejoras aplicadas a un tapón elástico para recipientes, particularmente tubos de ensayo y similares, comprendiendo una cavidad que presenta una boca superior y una superficie lateral, y que está cerrada interiormente por un tabique dotado de por lo menos un corte transversal que delimita sectores que se separan al introducir un vastago y que retornan a su posición de cierre al retirar dicho vastago.The invention relates to improvements applied to an elastic stopper for containers, particularly test tubes and the like, comprising a cavity that has an upper mouth and a lateral surface, and which is internally closed by a partition provided with at least one cut transverse that delimits sectors that separate when introducing a rod and that return to its closed position when removing said rod.
Un tapón del tipo descrito ha sido dado a conocer por el propio solicitante por medio del modelo de utilidad español Ns 266.599, correspondiente a la patente US 4515.752. Este tapón según dicha patente resulta de uso satisfactorio, si bien para determinadas aplicaciones, es posible mejorar su eficacia. Las mejoras aludidas derivan de una configuración que está caracterizada porque dicho tabique presenta una cara interna que define una primera concavidad y una cara externa que define una segurú.-a concavidad, siendo sustancialmente de forma cónica y sustancialmente coaíxial con la cavidad, presentando dicha cara interna por ϊo menos un surco transversal de modo que cada corte se encuentre en un surco transversal y el fondo de cada surco transversal aumenta progresivamente en sentido centrífugo su desnivel con respecto a la boca de la cavidad; y un primer surco periférico a dicha concavidad, dotado de un fondo en comunicación con el fondo de cada surco transversal; mientras que dicha segunda concavidad es sustancialmente de forma cónica y más obtusa que dicha primera concavidad.A plug type described has been disclosed by the applicant by means of the Spanish utility model N s 266 599, corresponding to US patent 4515,752. This cap according to said patent is of satisfactory use, although for certain applications, it is possible to improve its effectiveness. The improvements referred to derive from a configuration that is characterized in that said septum has an internal face that defines a first concavity and an external face that defines a safety-concavity, being substantially conical and substantially coaxial with the cavity, presenting said face internal by at least one transverse groove so that each cut is in a transverse groove and the bottom of each transverse groove progressively increases in a centrifugal direction its unevenness with respect to the mouth of the cavity; and a first peripheral groove to said concavity, provided with a bottom in communication with the bottom of each transverse groove; while said second concavity it is substantially conical in shape and more obtuse than said first concavity.
Otras venrajas y características de la invención se aprecian a partir de la siguiente descripción, en la que sin ningún carácter limitativo, se relata un modo preferente de realización de la invención, haciendo mención de los dibujos que se acompañan. Los dibujos muestran:Other advantages and features of the invention can be seen from the following description, in which, without any limiting character, a preferred embodiment of the invention is mentioned, mentioning the accompanying drawings. The drawings show:
La Fig. 1 una vista en planta superior del tapón elástico objeto de la presente invención; y la Fig. 2, a mayor escala, una sección según la línea II-II de la Fig. 1.Fig. 1 a top plan view of the elastic cap object of the present invention; and Fig. 2, on a larger scale, a section according to line II-II of Fig. 1.
El tapón 2 está realizado en un material altamente flexible, tal como caucho, un elastómero artificial o material análogo. Está destinado a introducirse parcialmente en el interior de un recipiente, en especial un tubo de ensayo o elemento similar, particularmente para la práctica de análisis clínicos, que es contenedor de .muestras a analizar, reactivos y otros.The plug 2 is made of a highly flexible material, such as rubber, an artificial elastomer or similar material. It is intended to be partially introduced into a container, especially a test tube or similar element, particularly for the practice of clinical analysis, which is a container of . samples to be analyzed, reagents and others.
Visto superiormente, se aprecia una cavidad 4 que presenta una boca 6 una superficie lateral 8 de forma general cilindrica la cavidad está cerrada inferiormente por un tabique 10 que presenta una cara interna 12 y una cara externa 14. Dicha cara interna define una primera concavidad 16 que sustancialmente es de forma cónica y es sustancialmente coaxial con la propia cavidad 4, presentando vértice central 18 deprimido.Seen from above, a cavity 4 is shown that has a mouth 6 a lateral surface 8 of generally cylindrical shape the cavity is closed inferiorly by a partition 10 having an internal face 12 and an external face 14. Said internal face defines a first concavity 16 which is substantially conical in shape and is substantially coaxial with the cavity itself 4, presenting central vertex 18 depressed.
Ξl ~abic e 10 está dotado de un corte trasversal 20 o preferenüemen e de una pluralidad de cortes transversales 20 que afectan a todo el grosor del tabique y convergen en el vértice central 18. Preferentemente estos cor es 2C sen ra iales, están alineados dos a dos y más preferentemente determinan una cruz ortogonal, tal como se representa en la Fig. 1.Abl ~ abic e 10 is provided with a transverse section 20 or preferably a plurality of transverse cuts 20 that affect the entire thickness of the partition and converge at the central vertex 18. Preferably these corrals are 2C senals, two are aligned two and more preferably determine an orthogonal cross, as depicted in Fig. 1.
Entre cada dos cortes 20, se delimitan sectores 22, los cuales, debido a la elasticidad del material, se separan cuando son presionados por la introducción de un vastago y que retornan a su posición inicial de cierre al retirar dicho vastago; habitualmente el vastago es un tubo, pipeta o similar relacionada con la introducción o extracción de líquido en un tubo de ensayo. también se prevé el caso de un solo corte 20, de orientación diametral, que permite igualmente el paso de un órgano rígido, tal como el apéndice de una jeringa de inyecciones. La citada concavidad 16, favorece el deslizamiento del vastago hacia el vértice central deprimido 18. La pendiente de esta concavidad es de aproximadamente 17 grados sexagesimales. En dicha cara interna 12 que define la primera concavidad 16, se encuentra por lo menos un surco transversal 24 preferentemente en correspondencia con cada corte -.radial 20, si bien puede ser distinto el número de surcos que el de corres. Ξn todo caso, un corte 20 se encuentra siempre en un surco 24. Tales surcos 24 son preferentemente de orientación radial y al estar alineados dos surcos radiales, componen un surco diametral.Between each two cuts 20, sectors 22 are delimited, which, due to the elasticity of the material, are separated when they are pressed by the introduction of a rod and that they return to their initial closing position when removing said rod; Usually the stem is a tube, pipette or the like related to the introduction or removal of liquid into a test tube. The case of a single cut 20, of diametral orientation, which also allows the passage of a rigid organ, such as the appendix of an injection syringe, is also provided. The aforementioned concavity 16, favors the sliding of the rod towards the depressed central vertex 18. The slope of this concavity is approximately 17 sexagesimal degrees. In said internal face 12 defining the first concavity 16, there is at least one transverse groove 24 preferably in correspondence with each cut-radius 20, although the number of grooves may be different than the of run. In any case, a cut 20 is always in a groove 24. Such grooves 24 are preferably of radial orientation and being aligned two radial grooves, make up a diametral groove.
El fondo 26 de un surco 24 asciende al acercarse al vértice central 18 o, dicho en otras palabras, el fondo 26 aumenta progresivamente en sentido centrífugo, su desnivel con respecto a la boca 6 de la cavidad 4, de modo que todos los surcos se encuentran a una misma altura al converger en el vértice central 18. Se puede observar, por lo tanto, que mientras la primera concavidad 16 aumenta su profundidad de la periferia hacia el centro, los surcos transversales 24 aumentan su profundidad del centro hacia la periferia.The bottom 26 of a groove 24 ascends when approaching the central vertex 18 or, in other words, the bottom 26 progressively increases in a centrifugal direction, its unevenness with respect to the mouth 6 of the cavity 4, so that all the grooves are they meet at the same height when converging at the central vertex 18. It can be seen, therefore, that while the first concavity 16 increases its depth from the periphery towards the center, the transverse grooves 24 increase its depth from the center to the periphery.
La cara interna 12 presenta además un primer surco 28 periférico con respecto a la primera concavidad 16. El fondo 30 del primer surco periférico 28 se halla en comunicación con el fondo 26 de los surcos transversales, si bien puede existir alguna, diferencia de nivel entre ambos. Como se indica más adelante, preferentemente este primer surco periférico es discontinuo.The inner face 12 also has a first peripheral groove 28 with respect to the first concavity 16. The bottom 30 of the first peripheral groove 28 is in communication with the bottom 26 of the transverse grooves, although there may be some, level difference between both of them. As indicated below, preferably this first peripheral groove is discontinuous.
Por lo expuesto, se pone de manifiesto que en cada sector 22, dos surcos transversales 24 contiguos y una porción del primer surco periférico 28, delimitan divisiones 32 de configuración general triangular, que superiormente presentan una cara encerrada entre las aristas rectas descendentes 34 y la arista 36 en forma de arco. En caso e un surco transversal 24 único de orientación diametral, se delimitan dos divisiones que carecen de dicha configuración triangular.Therefore, it is clear that in each sector 22, two contiguous transverse grooves 24 and a portion of the first peripheral groove 28, delimit divisions 32 of general triangular configuration, which superiorly they present a face enclosed between the straight downward edges 34 and the arc-shaped edge 36. In the case of a single transverse groove 24 of diametral orientation, two divisions that lack said triangular configuration are delimited.
Es as divisiones 32 emergen a un nivel superior con respecto al fondo 30 de los surcos transversales 24; ello conduce a que al ceder y separarse los sectores 22 por entrar en contacto con una pipeta o similar que se introduce en le tubo cerrado por el tapón 2, entran en contacto parte de la superficie de la pipeta y parte de la cara de la correspondiente división 32 delimitada por las líneas 34, 36, precisamente la parte de dicha cara más próxima al vértice central deprimido 18; sin embargo, la existencia de los surcos radiales 24 proporciona unos canales de aireación que comunican el interior y el exterior del tubo, cuando una pipeta extrae o aporta algún líquido a su interior, con lo que se evitan depresiones o sobrepresiones en el interior del tubo. El primer surco periférico 28 disminuye, por lo menos en una parte de una zona anular, el' grosor del tabique 10 que cierra la cavidad 4. Esto facilita la flexión de las secciones 22 y correspondiente divisiones emergentes 32, en el momento en que las mismas son sometidas a la acción de la pipeta o elemento similar.These divisions 32 emerge at a higher level with respect to the bottom 30 of the transverse grooves 24; this leads to the fact that when the sectors 22 are transferred and separated by coming into contact with a pipette or the like that is introduced into the tube closed by the plug 2, part of the surface of the pipette and part of the face of the corresponding one come into contact division 32 delimited by lines 34, 36, precisely the part of said face closest to the depressed central vertex 18; However, the existence of the radial grooves 24 provides aeration channels that communicate the inside and outside of the tube, when a pipette removes or brings some liquid inside, thereby avoiding depressions or overpressures inside the tube . The first groove peripheral 28 decreases, at least in part of an annular area, the 'thickness of the partition 10 closes the cavity 4. This facilitates the bending of the sections 22 and corresponding emerging divisions 32, at the time that they are subjected to the action of the pipette or similar element.
Sin embargo si la aludida flexión es excesiva, es prácticamente la totalidad de cada una de las divisiones 32, con inclusión de zonas de las mismas próximas a la arista arqueada 36, la ene llega a estar en contacto con la superficie de la pipeta o similar. con lo cual la sección útil de los canales de aireación se reduce en gran medida. Para evitar este inconveniente, preferentemente para cada división 32 se encuentra por lo menos un nervio axial 38 que une la división 32 y la superficie lateral 3 de la cavidad 4. También se prevé que por lo menos algunos de estos nervios axiales 38 se extiendan desde el fondo 30 del surco 28 hasta la boca 6 del tapón 2. Estos nervios se denominan axiales porque están orientados según la dirección del eje ideal del tapón; los mismos interrumpen el primer surco periférico 28 e impiden una flexión excesiva de las divisiones 32. La extensión preferente de tales nervios 38 hasta una distancia de alrededor de 1 mιr_. de la boca 6, permite que los espacios existentes entre nervios consecutivos actúen como canales de aireación cuando el diámetro de la pipeta que se introduzca sea- de dimensión análoga a la del diámetro de la propia cavidad. Esta pequeña distancia del extremo superior del nervio axial 38 hasta la boca 6 hace posible que la cavidad 4 pueda recibir la aplicación de un objeto circular de diámetro apropiado, sin que esto suponga una disminución apreciable del efecto de aireación.However, if the aforementioned flexion is excessive, it is practically all of each of the divisions 32, including areas thereof close to the arched edge 36, the ene becomes in contact with the surface of the pipette or the like. whereby the useful section of the aeration channels is greatly reduced. To avoid this inconvenience, preferably for each division 32 there is at least one axial rib 38 that joins the split 32 and the lateral surface 3 of the cavity 4. It is also provided that at least some of these axial ribs 38 extend from the bottom 30 of the groove 28 to the mouth 6 of the plug 2. These ribs are called axial because they are oriented according to the direction of the ideal axis of the plug; they interrupt the first peripheral groove 28 and prevent excessive bending of divisions 32. The preferred extension of such ribs 38 to a distance of about 1 m_r_. of the mouth 6, it allows the spaces between consecutive nerves to act as aeration channels when the diameter of the pipette that is introduced is of a dimension analogous to that of the diameter of the cavity itself. This small distance from the upper end of the axial rib 38 to the mouth 6 makes it possible for the cavity 4 to be able to receive the application of a circular object of appropriate diameter, without this entailing an appreciable decrease in the aeration effect.
Además, estos surcos 24, 28 son útiles para almacenar eventuales restos de líquido que hayan caído dentro de la cavidad. Co ello se evita que estos restos de líquido se introduzcan de nuevo en el recipiente, con las posibles consecuencias de contagio.In addition, these grooves 24, 28 are useful for storing any residual liquid that has fallen inside the cavity This prevents these liquid residues from entering the container again, with the possible consequences of contagion.
La cara externa 14 del tabique 10 define preferentemente una segunda concavidad 40, también de forma sustancialmente cónica, que es más obtusa que dicha primera concavidad 16, esto es, que la generatriz ideal de esta segunda concavidad 40 y el eje ideal del tapón forma un ángulo {por ejemplo de 84° sexagesimales) más cercano al ángulo recto que el ángulo (por ejemplo 73a) que forma la generatriz ideal de la primera concavidad 16 con el mismo eje ideal del tapón.The outer face 14 of the partition 10 preferably defines a second concavity 40, also substantially conical in shape, which is more obtuse than said first concavity 16, that is, that the ideal generatrix of this second concavity 40 and the ideal axis of the plug forms a angle {for example 84 ° sexagesimal) closer to the right angle than the angle (for example 73 a ) that forms the ideal generatrix of the first concavity 16 with the same ideal axis of the plug.
De esta conformación resulta que sea sustancialmente constante el grosor (alrededor de 1,5 mm) del tabique 10, medido axialmente entre la cara externa 14 y el fondo 26 de ios surcos radiales 24. La concavidad citada favorece una recuperación del tabique 10 cuando cesa de aplicarse sobre el mismo la pipeta deformadora.From this conformation it turns out that the thickness (about 1.5 mm) of the partition 10 is substantially constant, measured axially between the outer face 14 and the bottom 26 of the radial grooves 24. The said concavity favors a recovery of the partition 10 when it ceases if the deformation pipette is applied on it.
En algunas aplicaciones, resulta preferente que exista un segundo surco periférico 42, con lo que disminuye el grosor de la parte por donde deben flexionar las secciones 22.In some applications, it is preferred that there is a second peripheral groove 42, thereby reducing the thickness of the part where the sections 22 should flex.
Para que el tapón 2 quede fuertemente asegurado en el tubo correspondiente, existe una aleta 44 que circunda la boca 6 y dicha aleta 4 está continuada, por un faldón periférico 46, de modo que la aleta 44 sea apta para recubrir la boca del tubo y el faldón 46 sea apto para recubrir un tramo de la superficie lateral exterior del tubo.In order for the cap 2 to be firmly secured in the corresponding tube, there is a fin 44 that surrounds the mouth 6 and said fin 4 is continued, by a peripheral skirt 46, so that the fin 44 is suitable to cover the mouth of the tube and the skirt 46 be fit to cover a section of the outer side surface of the tube.
En el faldón 46 y en la parte del tapón destinada a introducirse en el tubo, se encuentran relieves 48, 50, 52 junto con entrantes 54, 56 aptos para cooperar con elementos complementarios del tubo a fin de facilitar y asegurar la inserción del tapón 2.In the skirt 46 and in the part of the cap intended to be introduced into the tube, reliefs 48, 50, 52 are found together with recesses 54, 56 suitable for cooperating with complementary elements of the tube in order to facilitate and ensure the insertion of the cap 2 .
Una característica particularmente interesante, es que la aleta 44 y el faldón 46 presentan (en su superficie lateral externa) unos tramos laterales 58, 60 pianos y axiales (esto es paralelos al eje ideal del tapón) , paralelos y opuestos entre sí dos a dos; preferentemente estos tramos son dos pares ortogonales ente sí, tal como se representa en el ejemplo propuesto. La superficie de transición entre dos tramos consecutivos puede ser redondeada o presentar una configuración como la representada, susceptible de favorecer el asido del tapón sin que se produzcan resbalamientos.A particularly interesting feature is that the fin 44 and the skirt 46 have (on its outer lateral surface) lateral sections 58, 60 pianos and axial (this is parallel to the ideal axis of the plug), parallel and opposite each other two to two ; preferably, these sections are two orthogonal pairs, as shown in the proposed example. The transition surface between two consecutive sections can be rounded or have a configuration like the one shown, capable of favoring the grip of the plug without slipping.
Una finalidad de dichos tramos planos 58, 60 es para una adecuada sujeción y orientación del tapón mientras se efectúan los cortes 20; preferentemente, el tapón se obtiene mediante una operación de moldeado que le proporciona su configuración y posteriormente se procede a realizar los citados cortes 20, los cuales deben estar alineados con los surcos radiales 24.One purpose of said flat sections 58, 60 is for an adequate fastening and orientation of the cap while the cuts 20 are being made; preferably, the plug is obtained by a molding operation that provides its configuration and then the aforementioned cuts 20 are made, which must be aligned with the radial grooves 24.
Esta exigencia de una determinada situación relativa entre cortes 20 y surcos 24 resulta de más fácil cumplimiento con los citados tramos planos 58, 60, puesto que en tal caso el tapón puede ser aprehendido entre dos mandíbulas que ocasionan una correcta colocación del tapón durante la práctica de los cortes radiales 20. El tapón descrito permite acceder al interior del recipiente, tanto para extraer contenido como para aportarlo, sin separarlo del recipiente. Puede ser sometido a presiones internas de 2 Xg/cm o a vacíos superiores a 58 mm de mercurio sin ningún detrimento. Además, permite habitualmente más de 200 aperturas y cierres sin perder su correcta función obturadora.This requirement of a certain relative situation between cuts 20 and grooves 24 is easier compliance with the aforementioned flat sections 58, 60, since in this case the cap can be grasped between two jaws that cause a correct placement of the cap during the practice of the radial cuts 20. The described cap allows access to the interior of the container, both to extract content to provide it, without separating it from the container. It can be subjected to internal pressures of 2 Xg / cm or voids greater than 58 mm of mercury without any detriment. In addition, it usually allows more than 200 openings and closures without losing its proper shutter function.
En consecuencia, su utilización implica un notable ahorro de mano de obra por su rapidez y simplicidad de manipulación. Por otra parte minimiza la posibilidad de contagios y evita accidentes por derrame, puesto que permanece constantemente tapado; además es apto para ser transportado neumáticamente en el interior del Hospital o centro similar. Consequently, its use implies a significant saving in labor due to its speed and simplicity of handling. On the other hand it minimizes the possibility of contagion and avoids accidents due to spillage, since it remains constantly covered; It is also suitable to be pneumatically transported inside the Hospital or similar center.

Claims

R Ξ I V I N D I C A C I 0 N 3 S R Ξ IVINDICATION 0 N 3 S
1.- . Tapón elástico para recipientes, particularmente tubos de ensayo y similares, comprendiendo una cavidad (4) que presenta una boca superior (6) y una superficie lateral (8) , y que está cerrada inferior ente por un tabique (10) dotado de por lo menos un corte transversal (20) que delimita sectoresone.- . Elastic cap for containers, particularly test tubes and the like, comprising a cavity (4) having an upper mouth (6) and a lateral surface (8), and which is closed lowerly by a partition (10) provided with minus a cross section (20) that delimits sectors
(22) que se separan al introducir un vastago y que retornan a su posición de cierre al retirar dicho vastago, caracterizado porque dicho tabique (10) presenta una cara interna (12) que define una primera concavidad (6) y una cara externa (14) que define una segunda concavidad (40) , siendo dicha primera concavidad (16) sustancialmente de forma cónica y sustancialmente coaxial con la cavidad (4) , y presentando dicha cara interna (12) por lo menos un surco transversal (24) de modo que cada corte (20) se encuentre en un surco transversal (24) y el fondo de cada surco transversal (24) aumente progresivamente en sentido centrífugo su - desnivel con respecto a la boca (6) de la cavidad (49) ; y un primer surco periférico (28) a dicha concavidad (16) , dotado de un fondo (30) en comunicación con el fondo de cada surco transversal; mientras que dicha segunda concavidad (40) es sustancialmente de forma cónica y más obtusa que dicha primera concavidad (16) . (22) that are separated when a rod is introduced and that they return to their closed position when said rod is removed, characterized in that said partition (10) has an internal face (12) defining a first concavity (6) and an external face ( 14) defining a second concavity (40), said first concavity (16) being substantially conical and substantially coaxial with the cavity (4), and said inner face (12) having at least one transverse groove (24) of so that each cut (20) is in a transverse groove (24) and the bottom of each transverse groove (24) increases progressively in a centrifugal direction, uneven with respect to the mouth (6) of the cavity (49); and a first peripheral groove (28) to said concavity (16), provided with a bottom (30) in communication with the bottom of each transverse groove; while said second concavity (40) is substantially conical in shape and more obtuse than said first concavity (16).
2.- Tapón según la reivindicación 1, caracterizado porque dicho surco transversal (24) es único y de orientación diametral y entre dicho surco transversal (24) y porciones del primer surco periférico (28) se delimitan unas divisiones (32) .2. Cap according to claim 1, characterized in that said transverse groove (24) is unique and of diametral orientation and between said transverse groove (24) and portions of the first peripheral groove (28) some divisions (32) are delimited.
3.- Tapón según « la reivindicación 1, caracterizado porque existen una pluralidad de surcos transversales (24) que son e orientación radial y entre cada dos surcos (24) contiguos y una porción del primer surco periférico (28) se delimitan unas divisiones (32) de configuración general triangular. 3. Cap according to "claim 1, characterized in that there are a plurality of transverse grooves (24) which are radially oriented and between each two adjacent grooves (24) and a portion of the first peripheral groove (28) divisions are delimited ( 32) of triangular general configuration.
4.- Tapón según las reivindicaciones 2 o 3, caracterizado porque para cada división (32) existe por lo menos un nervio axial (38) de unión entre la división (32) y la superficie lateral (8) de la cavidad (6) .4. Cap according to claims 2 or 3, characterized in that for each division (32) there is at least one axial rib (38) connecting between the division (32) and the lateral surface (8) of the cavity (6) .
5.- Tapón según la reivindicación 4, caracterizado porque por lo menos alguno de dichos nervios axiales (38) de unión se extienden desde el fondo5. Cap according to claim 4, characterized in that at least some of said axial connecting ribs (38) extend from the bottom
(30) del primer surco periférico (28) hasta la boca (6) de la cavidad (4) .(30) from the first peripheral groove (28) to the mouth (6) of the cavity (4).
6.- Tapón según la reivindicación 1, caracterizado porque el grosor de dicho tabique (10) desde la segunda concavidad (40) al fondo de cada surco transversal (24) , es sustancialmente constante.6. Cap according to claim 1, characterized in that the thickness of said partition (10) from the second concavity (40) to the bottom of each transverse groove (24), is substantially constant.
7.- Tapón según la reivindicación 1, caracterizado porque dicha segunda concavidad (40) presenta un segundo surco periférico (42) .7. Cap according to claim 1, characterized in that said second concavity (40) has a second peripheral groove (42).
8.- Tapón según una de las reivindicaciones anteriores, caracterizado porque presenta una aleta (44) que circunda la boca (6) de la cavidad (4) y dicha aleta (44) está continuada por un faldón (46) .8. Cap according to one of the preceding claims, characterized in that it has a fin (44) which surrounds the mouth (6) of the cavity (4) and said fin (44) is continued by a skirt (46).
9.- . Tapón según la reivindicación 8, caracterizado porque dicha aleta (44) y dicho faldón (46) definen una superficie lateral externa en la que se encuentran por lo menos dos tramos axiales (58, 60) opuestos, planos y paralelos.9.-. Cap according to claim 8, characterized in that said flap (44) and said skirt (46) define an external lateral surface in which there are at least two opposite, flat and parallel axial sections (58, 60).
10.- Tapón según la reivindicación 9, caracterizado porque dichos tramos axiales (58, 60) opuestos constituyen dos pares de tramos ortogonales entre sí.10. A stopper according to claim 9, characterized in that said opposite axial sections (58, 60) constitute two pairs of orthogonal sections.
11.- Tapón según una de las reivindicaciones anteriores, caracterizado porque dicha cara interna (12) presenta dos surcos (24) diametrales y ortogonales entre sí, existiendo un único nervio axial (38) de unión para cada división (32) , el cual se extiende desde el fondo (30) del primer surco periférico (28) hasta una distancia de alrededor de 1 mm de dicha boca (6) . 11. A stopper according to one of the preceding claims, characterized in that said inner face (12) has two diametral and orthogonal grooves (24), there being a single axial connecting rib (38) for each division (32), which it extends from the bottom (30) of the first peripheral groove (28) to a distance of about 1 mm from said mouth (6).
PCT/ES1990/000008 1989-02-10 1990-02-06 Elastic plug for containers WO1990009330A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP8900477 1989-02-10
ES8900477A ES2013017A6 (en) 1989-02-10 1989-02-10 Elastic plug for containers

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WO1990009330A1 true WO1990009330A1 (en) 1990-08-23

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ES (1) ES2013017A6 (en)
WO (1) WO1990009330A1 (en)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
EP0504697A1 (en) * 1991-03-19 1992-09-23 F. Hoffmann-La Roche Ag Reagent container closure
WO1992020449A1 (en) * 1991-05-20 1992-11-26 Closure Technologies, Inc. A sealing cap with a one way valve
EP0819941A2 (en) * 1991-03-04 1998-01-21 Ciba Corning Diagnostics Corp. Reagent container and cover
FR2772727A1 (en) * 1997-12-24 1999-06-25 Rvp Finance Non-return seal for container neck opening
DE10105753C1 (en) * 2001-02-08 2002-03-28 Merck Patent Gmbh Closure used for reagent containers consists of a cap part for fixing to the container and a conical insert having a wall divided into tabs with a ridge on the side facing away from the container
US6436349B1 (en) 1991-03-04 2002-08-20 Bayer Corporation Fluid handling apparatus for an automated analyzer
WO2004074162A1 (en) * 2003-02-19 2004-09-02 The Coca-Cola Company System and method for aseptic filling of packages with liquid products
FR2969128A1 (en) * 2010-12-21 2012-06-22 Bio Rad Pasteur CAP FOR CLOSING A CONTAINER
WO2016155618A1 (en) * 2015-04-02 2016-10-06 无锡市凯顺医疗器械制造有限公司 Test tube plug and convenient type of disposable sealed body fluid retention device using same

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US3823840A (en) * 1972-08-04 1974-07-16 Silver J Prepunctured closure
US4243150A (en) * 1978-01-23 1981-01-06 Siemens Aktiengesellschaft Bottle seal
EP0097591A1 (en) * 1982-06-18 1984-01-04 Fernando Xalabarder Miramanda A stopper for containers for use in analyses
EP0126390A2 (en) * 1983-05-13 1984-11-28 E.I. Du Pont De Nemours And Company Fluid transfer method and device

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Publication number Priority date Publication date Assignee Title
US3823840A (en) * 1972-08-04 1974-07-16 Silver J Prepunctured closure
US4243150A (en) * 1978-01-23 1981-01-06 Siemens Aktiengesellschaft Bottle seal
EP0097591A1 (en) * 1982-06-18 1984-01-04 Fernando Xalabarder Miramanda A stopper for containers for use in analyses
EP0126390A2 (en) * 1983-05-13 1984-11-28 E.I. Du Pont De Nemours And Company Fluid transfer method and device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6436349B1 (en) 1991-03-04 2002-08-20 Bayer Corporation Fluid handling apparatus for an automated analyzer
US6074615A (en) * 1991-03-04 2000-06-13 Bayer Corporation Reagent container for an automated analyzer
US6555062B1 (en) 1991-03-04 2003-04-29 Bayer Corporation Reagent container for an automated analyzer
EP0819941A2 (en) * 1991-03-04 1998-01-21 Ciba Corning Diagnostics Corp. Reagent container and cover
EP0819941A3 (en) * 1991-03-04 1998-11-18 Ciba Corning Diagnostics Corp. Reagent container and cover
EP0504697A1 (en) * 1991-03-19 1992-09-23 F. Hoffmann-La Roche Ag Reagent container closure
US5297599A (en) * 1991-03-19 1994-03-29 Hoffmann-Laroche Inc. Closure device for sealing reagent containers in an automatic pipetting system
WO1992020449A1 (en) * 1991-05-20 1992-11-26 Closure Technologies, Inc. A sealing cap with a one way valve
FR2772727A1 (en) * 1997-12-24 1999-06-25 Rvp Finance Non-return seal for container neck opening
DE10105753C1 (en) * 2001-02-08 2002-03-28 Merck Patent Gmbh Closure used for reagent containers consists of a cap part for fixing to the container and a conical insert having a wall divided into tabs with a ridge on the side facing away from the container
WO2004074162A1 (en) * 2003-02-19 2004-09-02 The Coca-Cola Company System and method for aseptic filling of packages with liquid products
FR2969128A1 (en) * 2010-12-21 2012-06-22 Bio Rad Pasteur CAP FOR CLOSING A CONTAINER
WO2012084989A1 (en) * 2010-12-21 2012-06-28 Bio-Rad Innovations Cap for sealing a container
RU2597565C2 (en) * 2010-12-21 2016-09-10 Био-Рад Инновасьон Cover for packing container
US9636679B2 (en) 2010-12-21 2017-05-02 Bio-Rad Innovations Cap for sealing a container
WO2016155618A1 (en) * 2015-04-02 2016-10-06 无锡市凯顺医疗器械制造有限公司 Test tube plug and convenient type of disposable sealed body fluid retention device using same

Also Published As

Publication number Publication date
ES2013017A6 (en) 1990-04-16
AU5046590A (en) 1990-09-05

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